b-u bbb bbf bbm bbr bbs bbu bfb bff bfm bfr bfs bfu bmb bmf bmm bmr bms bmu brb brf brm brr brs bru bsb bsf bsm bsr bss bsu bub buf bum bur bus buu fbb fbf fbm fbr fbs fbu fff ffm ffr ffs ffu fmb fmf fmm fmr fms fmu frb frf frm frr frs fru fsb fsf fsm fsr fss fsu fub fuf fum fur fus fuu m-f m-r mbb mbf mbm mbr mbs mbu mfb mff mfm mfr mfs mfu mmb mmf mmm mmr mms mmu mrb mrf mrm mrr mrs mru msb msf msm msr mss msu mub muf mum mur mus muu rbb rbf rbm rbr rbs rbu rfb rff rfm rfr rfs rfu rmb rmf rmm rmr rms rrb rrf rrm rrr rrs rru rsb rsf rsm rsr rss rsu rub ruf rum rur rus ruu sbb sbf sbm sbr sbs sbu sfb sff sfm sfr sfs sfu smb smf smm smr sms smu sr- srb srf srm srr srs ss- ssb ssf ssm ssr sss ssu sub suf sum sur sus suu ubb ubf ubr ubs ubu uff ufm ufr ufs ufu um- umb umf umm umr ums umu ur- urb urf urm urr urs uru usb usf usm usr uss usu uum uur uus uuu

bbbb bbbs bffs bfsr bmus brfm brfu brrm brrr brrs brsb brsr brum brus bsff bsfs bsms bsrm bssm bubb bubs bubu buff bufr bum- bumb bumf bums bur- burb burm burr burs buru buss busu buus fbrs fbus ffff ffrr ffss fmsr fmss frsb frsm frub frum fssf fubb fubs fubu fuff fufu fums fur- furm furr furs fuss fusu mbbs mbms mbrs mbsf mbus mfbm mfrs mfsb mmff mmmm mmms mmrf mmsu mmus mrbb mrbm mrbs msff msfs msmb msmm msms msmu msrb mssf mssm mssr msus mubs muff mufu mumm mums mumu murr murs muru muss musu rbbb rbbr rbbs rbms rbss rmbs rrrr rrum rsum rubb rubs rubu ruff rumb rumm rums rurs ruru russ rusu sbbs sbus sfmm sfss sfsu smbf smrf smss smur smus srub ssbr ssrm ssrs sssb sssf sssm ssss sub- subb subm subs suf- suff sufr sufs sufu sum- sums sumu sur- surf surr surs suru sus- suss susu suum suus ufms umb- umff umms umsu umus urbs urff urss ursu urum urur urus usbr usbs usfs usmm usms ussb ussf ussr usss ussu usus uuuu

bbuss bmfms brmmm brrrr bruff brumm bruss buffs bumbu burbs burrs burru burus bussu busum busur busuu fu-fu fubbs fubus fuffs furrs furus fusus mburu mmfbm mmmmm muffs mummu murru murum murus rsssf rubus ruffs rufus rummu rus-m s-bus smbus smurf smurr smuss sssrb sssss subbu subss suffr suffs sumru sumur surfs surur surus susus ursus urubu urums uuuuu

bbbbbb brubru brumus bububu buffum burbur bussum furfur furrfu murmur musmus mussum muumuu rubrum ruffus rumbur russus smurfs sssfrs suburb summum sumuru sursum surumu susumu susurr ubussu umbuss

bbbbbbb burruss murmurs muu-muu muumuus sssssss suburbs sursum-

bbbbbbbb buruburu mbumburu murumuru musumusu sussurus susurrus

mmmmmmmmmmmm

bbbbbbbbbbbbbbb